Home / 25,311.87-37,967.85-7,781.58

Finding the Fourth Proportional to 25,311.87, 37,967.85 and 7,781.58

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Solution

The fourth proportional to 25,311.87, 37,967.85 and 7,781.58 is: 11,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.87 : 37,967.85 = 7,781.58 : x
  2. Step 2: Convert to fraction form
    25,311.87/37,967.85 = 7,781.58/x
  3. Step 3: Cross multiply
    25,311.87x = 37,967.85 × 7,781.58
  4. Step 4: Simplify right side
    25,311.87x = 295,449,862.20
  5. Step 5: Solve for x
    x = 295,449,862.20/25,311.87
  6. Step 6: Final answer
    x = 11,672.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.